Tarmond GEO 40 is a premium gas engine oil developed for stationary engines, cogeneration systems and gas-fired power plants operating on natural gas and biogas. Formulated with hydrocracked base oils, MoS₂ solid lubricants and advanced additive technology, it delivers superior wear protection, high oxidation resistance and clean combustion performance. Its low deposit formation and high stability support extended oil drain intervals.

Meets the Specifications: INNIO Jenbacher TI 1000-1108/1109; GE Jenbacher Type 2/3/4/6 Class A/B (Natural Gas/Biogas); MWN; MAN M3271-2/5; MTU Gas Engines S4000 L32, L33, 400 Series; Perkins Gas Engine Oil; Cummins QSK 60; Rolls-Royce B35:40/C26:33/K-G1/G2/G3/G4; Wartsila SG34/SG50/28SG/32DF

Please check your owner’s manual for the manufacturer’s recommended oil viscosity grade and API classification and approvals.